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Yearly Archives: 2008

e360 v. Spamhaus

Mickey has been posting new documents in the e360 v. Spamhaus case. I’ve not had the time to read them, yet, but have seen some of the excerpts. Spamhaus is moving for summary judgment and moving to strike Mr. Lindhart’s testimony.

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RoadRunner FBL information

RoadRunner has decided to delay the launch of their new FBL until after the holidays. Sounds like a good idea to me, the launch is never quite as smooth as the ISP wants it to be. People are checking out and trying to troubleshoot the problems while also dealing with all the extra stress and […]

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Light blogging through 2009

There will be some light blogging here through the end of the year. We are headed out for our first vacation in years next week, then will be spending some time with family. I will be blogging before we leave and will try to get some posts written to trickle out while I’m gone. I […]

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Co-reg

Well over half of the clients who come to me with delivery problems admit at some point that one of the ways they collect subscribers is through co-registration. They typically have widespread delivery problems at the major ISPs as well as SBL listings. John Levine posted over the weekend about his thoughts on co-reg. So […]

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Blocking mail to spamcop.net

Josh reports mail from MobileMe to spamcop.net addresses is being filtered somewhere and isn’t being delivered or actively bounced. He asserts that Apple is blocking all mail to Spamcop addresses because they were having problems getting blacklisted on SpamCop and implemented this as a way of reducing their number of SpamCop spamtrap hits. That makes […]

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Aggregate stats for benchmarking

The great folks over at Mailchimp publish aggregate stats from their customers. This is a useful set of data for senders who want to see how other mailers or ESPs are doing. One set of stats is the data from 234 million emails delivered by our system (where campaign tracking was activated, and where users […]

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But that’s what spammers do!

A few weeks ago I was asked my opinion about a delivery situation. It seems that a sender wanted to mail to a purchased email list. They asked what I thought about getting fresh IP addresses and domains to use to send mail to the purchased list. “We know we’re going to get complaints, probably […]

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Mailing old files, part 2

Stephanie Miller at ReturnPath offers suggestions on how marketers can break the rules, mail old lists and reap the rewards.

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Confirmed unsubscribe

Whatever one might think about confirming opt-ins I think we can all agree that requiring someone to jump through hoops and confirm an unsubscription request will just annoy that person. Today I attempt to opt-out from a discussion list. It’s one I *thought* I had opted out of previously, but I could find no record […]

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Old lists have bad delivery

This is something we all know is true, and something that everyone believes. But, Mailchimp has actually published numbers demonstrating just how bad old lists are. Stats for the “Inactives” list (241,832 recipients): Spam Complaints: 43 Open Rate: 6% Click Rate: 2.4% (and 7,688 total clicks) Unsubscribes: 264 Bounces: 6,878 (2.8%) Stats for the “Actives” […]

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  • HE.net DNS problems

    Hurricane Electric had a significant outage of their authoritative DNS servers this morning, causing them to return valid responses with no results for all(?) queries. This will have caused delivery problems for any mail going to domains using HE.net DNS - which will include some of their colocation customers, as well as users of their free services - but also will have caused reverse DNS to fail for most servers hosted by Hurricane Electric worldwide, so if any of your mail is being sent from HE hosted machines you may have seen problems. (We're HE customers so we noticed. Still happy with them as a vendor.)No Comments


  • 65.0.0.0/8 DNS issues

    If you're sending email from any address beginning with a 65 - in 65.0.0.0/8 - it's possible you'll see some delivery problems. Something appears to be broken with dnssec signatures for the reverse DNS zone, leading queries for reverse DNS to fail for anyone using a dnssec aware DNS resolver (which is almost everyone).1 Comment


  • Our green bar certificate is going away

    Later today we'll be switching from an Extended Validation ("green bar") SSL certificate to a Domain Validation certificate. This isn't exactly a planned change but I'm waiting for responses from Comodo before I go into it too much. I'll share some more details next week.3 Comments


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